A method for detecting whether the TIP head is removed successfully

Abstract

The present invention discloses a method for detecting whether a TIP tip is successfully removed, belonging to the field of TIP tip equipment. The method comprises a pipette main body and a TIP round head, wherein the pipette main body further comprises a gun head and a removal detection device. The detection method comprises the following steps: S1, turning on equipment for processing and producing the TIP round head, and simultaneously executing a TIP round head piercing action to process the TIP round head, and separating the TIP round head from the gun head by a pushing component after the processing is completed; S2, after separating the TIP round head from the gun head by the pushing component in S1, detecting the distance between the TIP round head and the gun head by a removal detection device, and judging the distance between the TIP round head and the gun head in a fitted state and a separated state; S3, judging the separation state between the TIP round head and the gun head according to S2, when the entire TIP round head is separated, pushing the TIP round head a second time by the pushing component until the TIP round head is separated from the gun head as a whole; the present invention monitors the state of the TIP round head in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of TIP head equipment, and in particular to a method for detecting whether a TIP head is successfully removed. Background Art

[0002] A pipette, also known as a pipette gun, is a measuring tool used to transfer liquid from one container to another within a certain range. It is widely used in biology, chemistry and other fields. For example, when testing and analyzing blood or urine samples in the laboratory of a hospital, a pipette is usually needed to transfer the sample or the corresponding chemical testing aid into the corresponding vessel for testing.

[0003] Conventional pneumatic pipettes usually consist of a pipette body and a TIP head (also called a suction tip). The pipette body is provided with a gun tip used in conjunction with the TIP head. When pipetting is required, the Z-axis drive mechanism of the pipette system first drives the pipette body to move, so that the gun tip of the pipette body extends into the interior of the TIP head to complete the TIP head piercing action. Repeating the piercing action allows the pipette to replace the TIP head and perform subsequent aspiration actions.

[0004] When existing equipment is producing and processing TIP tips, since TIP tips are disposable consumables, the demand for TIP tips is gradually increasing, and thus the requirements for TIP tip production are also gradually increasing. However, during the demolding process of the TIP tips on existing equipment, some TIP tips may accidentally stick to the gun tip during the demolding process, thereby affecting the next production and processing. In order to detect the state of the TIP tip when it falls off the gun tip, a method for detecting whether the TIP tip has been successfully removed has been developed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the state of the TIP head when it falls off the gun head cannot be detected, thereby affecting subsequent processing, and to propose a method for detecting whether the TIP head is successfully removed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for detecting whether a tip is successfully removed comprises a pipette body and a tip round head, wherein the pipette body further comprises a gun head and a removal detection device for detecting the fit between the gun head and the tip round head after the gun head is pushed by a pushing component;

[0008] The detection method includes the following steps:

[0009] S1. Turn on the equipment for processing and producing the TIP round head, and simultaneously perform the TIP round head piercing action to process the TIP round head. After the processing is completed, the TIP round head is separated from the gun head by pushing the assembly;

[0010] S2. After the TIP round head is separated from the gun head by the pushing component in S1, the detection device is removed to detect the distance between the TIP round head and the gun head, and the distance between the TIP round head and the gun head when they are in a state of contact and when they are separated;

[0011] S3, judging the separation state between the TIP round head and the gun head in S2, when the entire TIP round head is separated, pushing the TIP round head a second time by the pushing component until the TIP round head and the gun head are separated as a whole;

[0012] S4. According to S2, the separation state between the TIP round head and the gun head is determined. If some of the TIP round heads are not completely separated, the detection device is removed to indicate that the distance between some of the TIP round heads and the gun head is abnormal.

[0013] Preferably, the pushing assembly in S1 includes a driving device, a push rod is fixedly installed on the output end of the driving device, a push block is installed on the end of the push rod away from the driving device, and an arc plate is slidably installed on one side of the push block.

[0014] Preferably, the top end of the arc-shaped plate is in a horizontal state, and one side of the arc-shaped plate is configured to be arc-shaped, and the plates are continuously arranged in the above manner.

[0015] Preferably, an L-shaped plate is provided at the bottom end of the arc-shaped plate, and a sliding groove is opened at the bottom end of the L-shaped plate, wherein the inner wall of the sliding groove is slidably connected to the bottom end of the arc-shaped plate.

[0016] Preferably, one end of the arc-shaped plate is fixedly connected to an elastic mechanism, and one end of the elastic mechanism away from the arc-shaped plate is connected to the L-shaped plate.

[0017] Preferably, a pressure plate is fixedly mounted on one side of the push block, a limit plate is mounted on the bottom end of the pressure plate, and a clamping plate is fixedly mounted on one end of the limit plate.

[0018] Preferably, a hole is provided at one end of the splint, and an annular rubber plate is installed on the inner wall of the hole, the inner wall of the annular rubber plate is slidably connected to the outer surface of the gun head, and the radius of the inner circle of the annular rubber plate is smaller than the radius of the TIP round head.

[0019] Compared with the prior art, the present invention provides a method for detecting whether a TIP head has been successfully removed, which has the following beneficial effects:

[0020] 1. The method for detecting whether the TIP head has been successfully removed is to push the component to separate the TIP head after production and processing to the outside of the gun head. After the driving device is started, the clamping plate is driven to move abnormally. Since the arc plate is arranged in multiple sections, the push block moves a distance on the arc plate and then limits the position, so that the TIP head is separated from the gun head but not completely fallen off. The removal detection device detects the distance between the TIP head and the gun head to determine whether the TIP head is separated from the gun head and transmits a signal, thereby avoiding deviations in the production process.

[0021] 2. The method for detecting whether the TIP head has been successfully removed uses an arc-shaped rubber plate installed on the clamping plate. The radius of the inner circle of the annular rubber plate is smaller than the radius of the TIP round head, so that the annular rubber plate can be completely installed on the gun head and press the TIP round head. When the driving device drives the push block to perform a second press, the entire TIP round head can be separated from the gun head, thereby ensuring the efficiency of TIP round head production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A flow chart of a method for detecting whether a TIP head has been successfully removed, as proposed by the present invention;

[0023] Figure 2 This is a first schematic diagram of the main structure of a pipette according to a method for detecting whether a TIP head has been successfully removed proposed by the present invention;

[0024] Figure 3 A second schematic diagram of the main structure of a pipette according to a method for detecting whether a TIP head has been successfully removed proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the curved plate structure of a method for detecting whether the TIP head is successfully removed, as proposed by the present invention.

[0026] In the figure: 1. Pipette body; 2. TIP round head; 3. Removal detection device; 4. Pushing assembly; 11. Gun head; 41. Driving device; 42. Push rod; 43. Push block; 44. Arc plate; 45. L-shaped plate; 46. Slide groove; 47. Elastic mechanism; 48. Pressing plate; 49. Limiting plate; 51. Clamping plate; 52. Hole; 53. Annular rubber plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1:

[0030] Reference Figure 1 A method for detecting whether a tip is successfully removed includes a pipette body 1 and a tip round head 2. The pipette body 1 also includes a gun tip 11 and a removal detection device 3. The removal detection device 3 is a distance sensor, model TFMINI, for detecting the fit between the gun tip 11 and the tip round head 2 after the pushing component 4 pushes the gun tip 11.

[0031] The detection method includes the following steps:

[0032] S1, turning on the equipment for processing and producing the TIP round head 2, and simultaneously performing the TIP round head 2 piercing action to process the TIP round head 2, and after the processing is completed, separating the TIP round head 2 from the gun head 11 by pushing the component 4;

[0033] S2. After the TIP round head 2 and the gun head 11 are separated by the pushing component 4 in S1, the detection device 3 is removed to detect the distance between the TIP round head 2 and the gun head 11, and the distance between the TIP round head 2 and the gun head 11 in the attached state and the separated state is determined;

[0034] S3, judging the separation state between the TIP round head 2 and the gun head 11 in S2, when the entire TIP round head 2 is separated, pushing the TIP round head 2 a second time through the pushing component 4 until the TIP round head 2 and the gun head 11 are separated as a whole;

[0035] S4. According to S2, the separation state between the TIP round head 2 and the gun head 11 is determined. If part of the TIP round head 2 is not completely separated, the detection device 3 is removed to indicate that the distance between the part of the TIP round head 2 and the gun head 11 is abnormal.

[0036] Example 2: Figure 2-Figure 4 As shown, based on the above embodiment, the pushing assembly 4 in S1 includes a driving device 41, which is a device with power output such as a motor. A push rod 42 is fixedly mounted on the output end of the driving device 41, and a push block 43 is mounted on the end of the push rod 42 away from the driving device 41. A curved plate 44 is slidably mounted on one side of the push block 43. The top of the curved plate 44 is horizontal, and one side of the curved plate 44 is configured to be curved, and they are arranged continuously in the above manner. The TIP round head 2 after production and processing is separated from the outside of the gun head 11 by pushing the component 4, wherein after the driving device 41 is started, it drives the splint 51 to move abnormally. Since the arc plate 44 is arranged in multiple sections, the push block 43 moves a distance on the arc plate 44 and then limits the position, so that the TIP round head 2 is separated from the gun head 11 but not completely fallen off. The distance between the TIP round head 2 and the gun head 11 is detected by removing the detection device 3 to determine whether the TIP round head 2 is separated from the gun head 11, and a signal is transmitted to avoid deviations in the production process. At the same time, after the removal detection device detects that the TIP round head 2 is completely detached, the signal is transmitted to the driving device 41, so that the driving device 41 drives the push block 43 to move toward the push rod 42 and restore it to its initial position.

[0037] An L-shaped plate 45 is provided at the bottom end of the curved plate 44, and a slide groove 46 is opened at the bottom end of the L-shaped plate 45, wherein the inner wall of the slide groove 46 is slidably connected to the bottom end of the curved plate 44, so that the curved plate 44 slides on the slide groove 46 after being subjected to force. At the same time, one end of the curved plate 44 is fixedly connected to an elastic mechanism 47, and the elastic mechanism 47 is an elastic device such as a spring. The end of the elastic mechanism 47 away from the curved plate 44 is connected to the L-shaped plate 45, so that the curved plate 44 squeezes the elastic mechanism 47 after moving.

[0038] A pressure plate 48 is fixedly installed on one side of the push block 43, and a limit plate 49 is installed on the bottom end of the pressure plate 48. A clamping plate 51 is fixedly installed on one end of the limit plate 49; a hole 52 is provided at one end of the clamping plate 51, and an annular rubber plate 53 is installed on the inner wall of the hole 52. The inner wall of the annular rubber plate 53 is slidably connected to the outer surface of the gun head 11, and the radius of the inner circle of the annular rubber plate 53 is smaller than the radius of the TIP round head 2, wherein the radius of the inner circle of the annular rubber plate 53 is smaller than the radius of the TIP round head 2, so that the annular rubber plate 53 can be completely set on the gun head 11, and press the TIP round head 2, so that when the driving device 41 drives the pushing block 43 to perform a second pressing, the entire TIP round head 2 can be separated from the gun head 11, and the TIP round head 2 is pre-separated by the arc plate 44, so that the entire TIP round head 2 will not cause any accidents during processing and removal. At the same time, when the second pressing is performed, if part of the TIP round head 2 is still not completely detached, the removal detection device 3 transmits a signal to the driving device 41, causing the pushing component 4 to reciprocate until the TIP round head 2 is separated from the gun head 11.

[0039] In the present invention, the driving device 41 is started, so that the driving device 41 drives the push rod 42 to move. Since one end of the push rod 42 is connected to the push block 43, the push block 43 moves under the drive of the driving device 41. At the same time, the end of the push block 43 away from the push rod 42 is slidably connected to one end of the arc plate 44, and the arc plate 44 slides on the inner wall of the slide groove 46 on the L-shaped plate 45. Then, an elastic mechanism 47 is provided on one side of the L-shaped plate 45, and the other end of the elastic mechanism 47 is connected to the arc plate 44. When the arc plate 44 is subjected to force, it slides on the slide groove 46 and squeezes the elastic mechanism 47. 44 is a two-stage type. When the push block 43 slides on the first stage, the entire TIP round head 2 is separated from the gun head 11, and the distance between the entire TIP round head 2 and the gun head 11 is detected by removing the detection device 3. When the distance between all the TIP round heads 2 and the gun head 11 is qualified, the push block 43 is moved a second time on the arc plate 44 to make the TIP round head 2 fall off completely. At the same time, when the detection device 3 is removed to detect the distance between the entire TIP round head 2 and the gun head 11, if there is an unqualified TIP round head 2, the signal is directly transmitted to the external display device to facilitate the staff to perform subsequent operations.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for detecting whether a TIP head has been removed successfully, characterized in that: include: The pipette body (1) and the TIP round head (2), the pipette body (1) also includes a gun head (11) and a removal detection device (3) for detecting the fitting state between the gun head (11) and the TIP round head (2) after the pushing component (4) pushes the gun head (11); The detection method includes the following steps: S1, turning on the equipment for processing and producing the TIP round head (2), and simultaneously performing the TIP round head (2) piercing action, processing the TIP round head (2), and separating the TIP round head (2) from the gun head (11) by pushing the component (4) after the processing is completed; S2, after the TIP round head (2) and the gun head (11) are separated by the pushing component (4) in S1, the detection device (3) is removed to detect the distance between the TIP round head (2) and the gun head (11), and the distance between the TIP round head (2) and the gun head (11) in the fitted state and the separated state is determined; S3, judging the separation state between the TIP round head (2) and the gun head (11) in S2, when the entire TIP round head (2) is separated, pushing the TIP round head (2) a second time by the pushing component (4) until the TIP round head (2) and the gun head (11) are separated as a whole; S4, judging the separation state between the TIP round head (2) and the gun head (11) according to S2, wherein a portion of the TIP round head (2) is not completely separated, and prompting that the distance between the portion of the TIP round head (2) and the gun head (11) is abnormal by removing the detection device (3); The pushing assembly (4) in S1 includes a driving device (41), a push rod (42) is fixedly mounted on the output end of the driving device (41), a push block (43) is mounted on one end of the push rod (42) away from the driving device (41), and an arc plate (44) is slidably mounted on one side of the push block (43); The top end of the arc-shaped plate (44) is in a horizontal state, and one side of the arc-shaped plate (44) is configured to be arc-shaped; An L-shaped plate (45) is provided at the bottom end of the arc-shaped plate (44), and a sliding groove (46) is provided at the bottom end of the L-shaped plate (45), wherein the inner wall of the sliding groove (46) is slidably connected to the bottom end of the arc-shaped plate (44); One end of the arc-shaped plate (44) is fixedly connected to an elastic mechanism (47), and one end of the elastic mechanism (47) away from the arc-shaped plate (44) is connected to the L-shaped plate (45).

2. The method for detecting whether the TIP head is removed successfully according to claim 1, characterized in that: A pressure plate (48) is fixedly mounted on one side of the push block (43), a limit plate (49) is mounted on the bottom end of the pressure plate (48), and a clamping plate (51) is fixedly mounted on one end of the limit plate (49).

3. The method for detecting whether the TIP head is removed successfully according to claim 2, characterized in that: One end of the clamping plate (51) is provided with a hole (52), and an annular rubber plate (53) is installed on the inner wall of the hole (52). The inner wall of the annular rubber plate (53) is slidably connected to the outer surface of the gun head (11), and the radius of the inner circle of the annular rubber plate (53) is smaller than the radius of the TIP round head (2).

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